Anti-permeability splicing structure of ceramsite bricks

The utility model discloses an anti-permeability splicing structure of ceramsite bricks. The wall brick comprises a plurality of wall brick bodies, the wall brick body comprises a mildew-proof layer,a heat preservation layer and a waterproof coating layer which are sequentially arranged from inside to outside. Heat preservation layer is a ceramsite heat insulation layer, two opposite heat preservation cavities are formed in the ceramsite heat insulation layer; the two side walls of every two adjacent wall brick bodies are provided with matched water guide anti-seepage pieces in the vertical direction of the wall brick bodies; two opposite dovetail joints are arranged on the bottom walls of the plurality of wall brick bodies; a dovetail groove matched with the dovetail joint and communicated with the heat preservation cavity is formed in the top wall of the wall brick body, a sealing piece is arranged on the side wall of the dovetail joint and attached to the groove wall of the dovetail groove, drainage slope